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. 2021 Aug 23;21:445. doi: 10.1186/s12935-021-02144-y

Fig. 3.

Fig. 3

Regulatory mechanisms of circRNAs. The regulatory molecular mechanisms of circRNAs. In the cytoplasm, circRNAs sponge miRNAs and proteins. CircRNAs regularly transcribe short peptides or serve as protein scaffolds. In the nucleus, circRNAs regulate transcription